I'm creating a NSOutlineView. When implementing the Data Source, although I'm able to create the top hierarchy I can not implement the childHierarchy. The reason is that I can't read the item: AnyObject? which prevents me from returning the right array from the dictionary.
var outlineTopHierarchy = ["COLLECT", "REVIEW", "PROJECTS", "AREAS"]
var outlineContents = ["COLLECT":["a","b"], "REVIEW":["c","d"],"PROJECTS":["e","f"],"AREAS":["g","h"]]
func childrenForItem (itemPassed : AnyObject?) -> Array<String>{
var childrenResult = Array<String>()
if(itemPassed == nil){ /
childrenResult = outlineTopHierarchy
}else{ /
/HERE IS THE ISSUE, NEED TO FIND ITS TITLE to call the correct child. CURRENTLY hardcoded collect.
childrenResult = outlineContents["COLLECT"]!
}
return childrenResult
}
/
func outlineView(outlineView: NSOutlineView, child index: Int, ofItem item: AnyObject?) -> AnyObject{
return childrenForItem(item)[index]
}
func outlineView(outlineView: NSOutlineView, isItemExpandable item: AnyObject) -> Bool{
if(outlineView.parentForItem(item) == nil){
return true
}else{
return false
}
}
func outlineView(outlineView: NSOutlineView, numberOfChildrenOfItem item: AnyObject?) -> Int{
return childrenForItem(item).count
}
func outlineView(outlineView: NSOutlineView, viewForTableColumn: NSTableColumn?, item: AnyObject) -> NSView? {
/
if (outlineTopHierarchy.contains(item as! String)) {
let resultTextField = outlineView.makeViewWithIdentifier("HeaderCell", owner: self) as! NSTableCellView
resultTextField.textField!.stringValue = item as! String
return resultTextField
}else{
/
let resultTextField = outlineView.makeViewWithIdentifier("DataCell", owner: self) as! NSTableCellView
resultTextField.textField!.stringValue = item as! String
return resultTextField
}
}
}I used this as a reference, although it's Objective-C implemented
